Nut-lock.



A. M. LE PIERRE.

NUT LOCK.

APPLICATION FILED JUNE 12, 1014.

1,1 1 5,694. Patented Nov. 3, 1914.

THE NORRIS PETERS C0., PHOTO-LITHO.. WASHINGTON. D. C.

- UNITED HAUGUSTE MARIE nlrrnnnnforl ironnn anama; i

am-L CKS? To all whom itmay concern: I

Be it known that I, AUeus'rnM nin-Ln PIERRE, a citizen of the UnitedStates, re-

siding at Korbel. in the county of Hiuiiboldt This invention relates toanimproved useful nut lock.

1 As one of the objects ofthe invention it is the aim to simplify andimprove the construction of nut lock, set forth aiid claimed andillustrated in the patent issued April 7, 1914, No. 1,092,53 1. I

Another object of the invention is to provide a nut'lock comprisingimproved tea:

tures of construction, one of which isthe' provision of an annular platewasher having radial slots, arranged circuniterentially, any

one of which isdesigned to receive a key pivoted upon a second plate,which is keyed to the bolt, the plate washer having lugs to engagerecesses of the'nut.

In practical fields-the details of construction may be subjected toalterations, falling within the scope of what isclainied.

The invention comprises turtl erfeatures and combinations of parts, ashereinafter set forth, shown in the drawings, and claimed;

In the drawings, Figure 1 is a plan viewof the nut lock constructionembodying the features of the invention. Fig. 2 is a secetioiial viewlongitudinally on line 2 2"of Fig. 1. Fig. 3 is a view showing the partsof the construction in perspective and disas sembled.- c 1 Referringmore especially to the draw- 1 designates two members to be boltedtogether, while 2 denotes the bolt, the shank,

31 of which is provided with a keyway 1, whereas 5 marksthe usual nut,which is provided with oppositely arranged cylindrical depressions 6.Tlienieinbers 1 are disposed between the plate washer 7 and the head 8of the bolt. The plate washer 7is provided with a lug 9 to engage thekeyway or groove 4 of the shank 3 of the bolt, to prevent the platewasher from turning. The plate washer is also provided with a radialgroove or slot 10, and adjoining this-slot upon the periphery of theplate washer"? are lugs 12 and 13 having cylindrical bores alined withone another, the slot 10 being between said Speciiicatioiiof LettersPatent. NOVQS', 1914; I Application filed June 2, 914.-; Seria1fio.844,688.

lugs. Q Mounted in, said parts is a spring retained bolt 14, the spring15, of which acts between the shoulder 15 ofsaid bolt and the shoulder1601": one of the lugs; i Alsoinounted upon theshank of the bolt is-asecond plate washer l'i, which isaprovided with a pluralthe 5." A'key201s provided having an aperture 21. This keyis designed to be arrangedin the slot 10, and one of the slots 18,

'insuch wise thatthe springbolt 14: may be inserted through the aperture210i the key,

thereby lockingthe plate washer 17 to the plate washer 7..

In arranging I is'insertedthrough the members 1, and the the nut lock,the bolt shank' p I r 65 which' eiiter the cylindrical depressionsfi ofplate washer '(placed over the shank so that the h1g9 will engage thekeyway 4: of the theilugs 19 will engage the cylindrical de-vSubsequently to which, the

plate washer 17 and bolt. The platewasher 17 is then placed upontheshank and also the nut 5, so that Pi;

tight against the plate washer 7, in such wise that-one of the slots 18will register with the slot 10'. iTh'e key 20 is tllGlLlIlSQltQd in theslot .10, the spring retained bolthaving been pulled back, so that theshank-of} said bolt will passthrough the aperture 21. In this manner thenut lock construction is renderedfirin and secure,'butit, at the same astinie, rnay be easily and manuallyunlocked, s

In'arrangiiigthe parts of the nut lock construction, I members 1 sofasto engage the key and hold the samebetween one of themembers 1 and thenut, I 1

they nut is adjusted toward the" Having set forth the invention, whatclaiined'as new and useful is '1. In'coinbinatio' a bolt having akeywayiin its shank, a nut ,threaded on the shank and provided with oppositelyarranged depressions in one of its faces, said bolt shank designed topass through a pair ofineinbers,

to be clamped, a plate washer havingara ve dial slot and PIOVlLlGd withan inwardly extending lug to engage the keyway, a spring retained boltcarried by theperipherylof said plate; washer and extending transverselyacross the S1 between the first washer and said nut and provided withlugs to engage said depressions and having a plurality of radial slotsot, a second plate washer arranged eircuinferentially, and a memberanchored upon thespring retained bolt and in the slot of the firstWasher and engaging one of the radial slots of the second Washer.

2. In combination, a bolt having a keyway in its shank and designed topass through the nut in" order to rotate therewith and pro washer andvided with a plurality of radialslots arranged circuinferentially and akey plate arranged in the'slotof the first plate Washer and engaging oneof the slots of the second provided with an aperture through which thespring retained bolt extends, said nut adapted to engage the key plateand hold it between oneof the mem- "bers and the nut.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing Witnesses. v I

" AUGUSTE' MARIE LE PIERRE.

Witnesses: I v

F. M, Bnonnnion, H. L. GI MoRn;

Copies of' this patent may be. obtained for five cents each, byaddressing the Commissioner of 'lPate'nts hw ashing ton, D. C.

